Publications by authors named "Radek Polansky"
Raman spectroscopy and DFT calculations of PEDOT:PSS in a dipolar field.
Phys Chem Chem Phys
December 2021
Article Synopsis
- The conductive polymer-electrolyte interface is crucial for the performance of electrochemical devices, particularly with solvent-free ionic liquids (SF-IL) acting like molten salts instead of typical electrolyte solutions.
- Raman spectroscopy revealed that SF-IL leads to ion pairs near the conductive polymer PEDOT:PSS, which reduces the polymer's oxidation level and increases the energy gap between HOMO and LUMO.
- Quantum chemical calculations demonstrate the "dedoping" process of the polymer and how its electronic structure is altered.
The present study is a focused and comprehensive analysis of the dielectric and thermal properties of twenty-four 3D printed polymers suitable for fused filament fabrication (FFF) in electronic applications. The selected polymers include various thermoplastic elastomers, such as thermoplastics based on polycarbonate (PC), polyethylene terephthalate glycol (PETG), and acrylonitrile butadiene styrene (ABS-T). Their overall thermal behavior, including oxidation stability, glass transition, and melting temperature, was explored using simultaneous thermal analysis (STA) and differential scanning calorimetry (DSC).
View Article and Find Full Text PDFAt present, the most commonly used electrical insulating materials, including cold-curing epoxy resins, are well designed for normal operating conditions. However, new generations of materials should also be capable of withstanding extreme emergency conditions, e.g.
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